The Preferential Impairment of Pupil Constriction Stimulated by Blue Light in Patients with Type 2 Diabetes without Autonomic Neuropathy

Figure 4

The receiver operating characteristic (ROC) curve analysis of postillumination pupillary response (PIPR) after the offset of blue (a) and red (b) light at ≥1.7–3.0 sec between the control subjects and diabetic subgroups stratified by the severity of neuropathy I; without neuropathy (- -- -- -), II; asymptomatic neuropathy (⋅⋅⋅⋅⋅⋅⋅⋅), and III; symptomatic but without diabetic autonomic neuropathy (- - -)}.

(a)

(b)